143 



the apex, which bends beyond the hind side (ib. fig. 12, b) ; this is flattened transversely, 

 and is feebly concave lengthwise. The enamel has much less vertical extent here than 

 along the anterior trenchant convex side of the crown. The outer side is slightly 

 convex, and marked in one specimen by a longitudinal linear groove (ib. fig. 10) ; in the 

 other by two grooves (ib. fig. 11), recalling those in the upper canines of Felis; the 

 inner side (fig. 12, a) in both teeth shows two longitudinal grooves, and a ridge of 

 enamel behind the hindmost groove. 



Of the three succeeding small teeth which I have assigned to the premolar series 

 (ante, p. 134), I recognize, in the cave-specimens, by the similarity of their very short 

 crown and straight root, those answering to p 2 and^? 3 in the upper jaw (Plate VII. figs. 

 13 & 14) ; but there is a photograph of a larger tooth, though less than the canine, 

 which in size at the base of the crown corresponds with the p 1 in place (id. ib.) on the 

 inner and hinder side of the canine. This tooth has a low conical crown, 3 lines long- 

 by 4| in basal antero-posterior breadth. The premolar (fig. 14, p 2) has a root 10 line* 

 in length, curved near the end to which it contracts. 



The two smaller succeeding premolars in place in the unique jaw (Plate VII. figs. 1-3) 

 I have not thought proper to displace ; the photographs, which plainly show the same 

 very short extent of enamelled crown, give to an example of p 2 a straight fang of 7 lines 

 in length, and to one of p 3 a similar fang 8 lines in length ; both taper to an obtuse 

 point. Amongst the duplicate teeth transmitted is a p 2 with half an inch of the solid 

 straight fang, and the crown of a p 3 corresponding with that in the upper jaw (Plate VII. 

 fig- 3). 



The photographs include three specimens of the great carnassial (p 4) with an ena- 

 melled crown 2 inches in fore-and-aft basal extent, 9 lines in greatest vertical extent. 

 The subject of one figure shows the two roots ; the foremost of which is 1 inch 6 lines 

 long and 1 inch in fore-and-aft breadth, where it becomes free ; the hind root or division 

 is 1 inch in length and about the same in fore-and-aft extent ; its greatest transverse 

 thickness is 6 lines, and it contracts to an obtuse hinder border. Both roots are shown 

 to be strongly marked, as in the tooth in situ (Plate VII. figs. 1 & 2), by fine subwavy 

 longitudinal striee near their extremities, adding to the closeness of attachment to the 

 alveolar periosteum. The characters of this huge carnassial in the fossil specimen are 

 so closely repeated as to render figures of these photographs unnecessary. 



A side view and a view of the grinding-surface of the small tubercular molar are given 

 in the photograph No. 7 : a similar specimen I have worked out of the breccia (Plate VII. 

 fig. 3, m 1). This tooth closely resembles that shown on the inner side of the hind end 

 of the great carnassial in Plate XI. fig. 2, b and in Plate XIV. fig. 1. 



It is evident that the five small teeth between the upper laniary (i 1) and the carnas- 

 sial (p 4, figs. 1-3, Plate VII.) can have had but insignificant functional relations. They 

 could not be opposed to mandibular teeth, if even their homotypes had been present or 

 retained in the lower jaw. But of these there seem to have been but two, or at most 



5* 



